Haxe macro for array of char codes

Main.hx

import haxe.macro.Expr;

class Main {
	static function main() {
		var a = generateCharCodeArray("foobar");
		trace(a); // [102,111,111,98,97,114]
	}
	
	#if haxe_211
	@:macro static public function generateCharCodeArray(source:String) {
		var result = [];
		for (i in 0...source.length) {
			result.push(macro $(source.charCodeAt(i)));
		}
		return macro $[result];
	}
	#else
	@:macro static public function generateCharCodeArray(source:String) {
		var p = haxe.macro.Context.currentPos();  // shortcut to current position (from where macro was called)
		var result = []; // Array<Expr>
		for (i in 0...source.length) {
			var e_const = EConst(CInt(Std.string(source.charCodeAt(i)))); // the constant int expression
			result.push({expr: e_const, pos: p });
		}
		return { expr: EArrayDecl(result), pos: p }; // return array declaration of const expressions
	}
	#end
}